Furnace-charging apparatus.



Eni/vm H. Mnssrrna, ornnw YORK, n. Y.

FURN-AcE-CHARGING APPARATUS. y

Specification of Letters` Patent.

Patented Jan. 8', 1907.

Application filed February 7, 1905, Serial No. 244,677.

o .oJ/Z .whom t `'W1/ty concern..-

Be it known lthat I, EDWIN H. Mnssrrnn,

acitizenof the UnitedStates, yresiding in the city, .county, and StateofNew York, have invented a 'new :and useful Furnace-Charging Apparatus,`of which the following is aspecificatlon. p

rfllhis `invention :relates fto furnace-charging apparatus, andparticularly to apparatus for 1 lchar ing furnaces for .'smelting`lead,.copper, or ot er .metals which fare `:treated in similar manner.

'Ilhe present invention `is closely .related to that disclosed `in mycompanion application, Serial No. 244,676, filed on even date herewith',.and 'theispeciiic lobject -of the present invention-is to provide :asimple, inexpensive, :and efficient apparatus which is adapted 5to .bealmost wholl5T inclosed vwithin the hood fof `a smelt-ing-furnaceand bymeans of which it will be possible to effect the `distribution of thecharging material within the furnace in -the mannerbest adapted 'to theconditions existing Withinlthe furnace at :all times.

With :the object :above stated fand"fcertain others in view, aswillhereinafter appear, :the invention consists fof ymeans at 'the top`of the furnace-hood for supplyingfand introducing a stream 1of`.chargingmaterial into the furinace and means inclosed Vwithin theIhood'for effecting the distribution .of the charging Amateria-lover thetop o'f the charge Within the furnace.

In the-.accompanying drawings, forming part of the specification, inwhich corresponding parts are designated 4by similar characters ofreference, I y'have[illustrated one embodiment of `the "invention whichwill be.

hereinafter described in detail, and the scope of the invention will beclearly defined in the appended claims.

In the drawings, Figure 1 is a view, principally in side elevation, ofthe upper part of a smelting-furnace and its hood with the chargingapparatus shown in position within the hood, portions of which arebroken away to show the structure of the charging apparatus. Fig. 2 is adetail view showing the mode of supporting the upper end of thedistributing-troughbeneath the spout through which material passes tothe distributingtrough.

Referring to the drawings by the reference characters `marked thereon, Hdesignates the hood at the top of the furnace, which may be of anysuitable construction, `and '.I -designates the .top of the chargewithin thefur- `nace-shaft, which is preferably rof the rectangularcross-section commonly adopted in copper and .lead furnaces.

In'the up er part yof the hood. II is :fixedua hopper 1., rom which faspout 2 extends .downward `some distanceA within Vthe .ihood. Above the.hopper l a conveyerfC, vwhichis preferably `of the belt itype, iis.arranged tto ldischarge a substantiallyicontinuous strearnof chargingmaterial, `and'to guide lthe stream-of material into the hopper 1 Ipreferably employ a special form of hopper 3, suitably supported above`the hopper l `'and .adjacent to fthe .end pulley of :the @conveyer Thestructures Kmentioned-n the preceding paragraph serve 'to supply .asubstantially continuous stream of Ycharging Jmaterial .and ytointroduceLit withinthe hood ofthe `lfunnace. The apparatus for leffecting thedistribution vof the stream of :charging .material `.over the top ofrthe charge is almost wholly ino'losed withinsthe hood, asshown-inEig. 1. .Immediately beneath the spout 2 `a trough 4ris rprovided, whichis arranged for periodic nrove- I ment to :and fro over `'thetop-.ofthecharge in 'the furnace, and all the material which passesdownward through thespout is deposited in the trough 4. The upper.portion of the trough is deeper than theflowerl ortion and is open. atthe side .to receive the; ower endof .the spout 2 and permit theshifting of `.the troughwithreferenceto the spout. The lower .portion ofthe trough lis :provided aviithf a covering :along the lside to prevent'the escape'of material from the trough .in )its .movements within thefurnace-hood. At its lower end the trough is pivotally mounted upon ahopper 5, which is rigidly attached to a carriage 6, arranged forhorizontal travel above the charge in the furnace. The upper portion 0fthe trough 4 rests upon a roller 7, mounted upon a shaft 8, which may besupported in any suitable manner within the hood H.

The carriage 6 extends through the slidewalls of the hood and issupported by suitable rollers 9, arranged outside of the hood, as shown.The carriage is of sufficient length tol permit the hopper 5, which ismounted midway between the ends of the carriage, tov move entirelyacross the top of the charge in vtop of the charge.

the furnace, as clearly indicated by dotted scribed or illustrated inthis application anymechanism for that purpose.

The operation of the apparatus above described will be readilyunderstood from the description and from the accompanying drawings. Thecharging material, which must of course be mixed in proper proportions,is carried by the conveyer C to the top of the Jurnace and is theredischarged through the hopper 3 into the hop er 1, iiXed in thefurnace-hood. From this hop er the charging material passes downward yinto the conduit or trough 4, through which it descends into the hopper5, which serves merely to guide the stream of material directlydownward. The hopper 5, being iixed upon the carriage 6, travels to andfro over the top of the charge in the furnace, and the rate of travel ofthe hopper 5 may be controlled in such a way that the charging materialwill be supplied as required at different points on the As the trough 4has a very steep itch in all the positions which it takes, the c argingmaterial will ass down? wardly through the trough at a su stantiallyuniform rate regardless ofthe position of the trough, and no accountneed be taken of the change of pitch ofthe trough as the hopper 5 movesto and fro over the charge in the furnace.

While I have described only a single embodiment of the invention, itwill be readily seen thatother structures differing in details ofconstruction may be made without departing from the spirit of theinvention, and I do not, therefore, limit myself to the exact form ofthe apparatus shown, but reserve the right to make changes thereinwithin the scope ofthe claims.

i Having thus described the invention, what I claim is l. Infurnace-charging apparatus, the combination with means for introducingcharging material within the furnace-hood, of distributing devicesinclosed with in the furnace hood and arranged for periodic movement ina single vertical plane.

2. In furnace-chargin g apparatus, the combination with a furnace-hood.having a hopper iixed therein and adapted to discharge material withinthe hood, of a chute or conduit arranged to receive material from saidiixed chute and having its lower end mounted for periodic movement in asingle vertical plane.

3. The combination with a furnace-hood having a charging-aperturetherein, of means for discharging material through said aperture anddistributing devices within the furnace-hood, said distributing devicesbeing arranged for reciprocatory movement in a single vertical planeonly and adapted to rc ceive material from said charging-aperture in allpositions of said distributing devices.

4. In furnace-charging apparatus, the combinati on with a furnace-hoodof a carriage arranged `for reciprocatory movement transversely throughsaid hood, a conduit having its lower end arranged for travel with saidcarriage and its upper end resting on a fixed support, and means forsupplying charging material to the said conduit at its upper end.

5. In furnace-charging apparatus, the combination with a furnace-hood ofa carriage arranged for reciprocatory movement transversely through thehood at its base, a hopper iixed upon said carriage, a conduit havingits lower end pivoted on said. hopper, a roller fixed in the upper partof said hood upon which the upper end of said conduit rests, and meansfor supplying charging material to said conduit at its upper end.

In testimony whereoiu I afix my signature in presence of two witnesses.

EDWIN H. MESSITER.

Witnesses:

BAXTER Mon'roN, Rosoon L. PETERSON.

